LC 9 and Memory

[Stephen MacLean]

Yes, it’s on MacOS 10.12.6. No, this is in use… and cause my open apps, including LC,  to be “paused” saying that I had run out of memory.

I have 32GB of real RAM and a 4TB SSD that the OS sits on, with half of that free. The swap file had grown to almost 30GB in size, with most of it used., which is probably why I paused everything… 

> On Aug 13, 2018, at 1:47 PM, Bob Sneidar via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Is this on a Mac? I know that for Macs, memory can be "in use" by an app, but the app will release it on request. "wired" memory is that which an app has allocated and will not release. Right now I have 11+ of 16 gigs of memory in use, but only 2.32 of it is "wired". If you look at the Activity Monitor, the indicator for Memory Pressure is really the indication of available resources. 
> 
> Windows these days probably uses a similar way of managing memory. 
> 
> Bob S
> 
> 
>> On Aug 13, 2018, at 10:42 , Stephen MacLean via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> Hi All,
>> 
>> I’m running into an issue where LC 9.0.1 RC1 Business is running a process and is gobbling up memory and then not releasing it until I quit LC. Like 22GB of memory!
>> 
>> Let me describe what I’m doing: I’m getting a query back from a MYSQL DB that contains 32k records, all text. Using revQueryDatabase() to put the data into a record set and the move cursor to go through each record in a repeat loop.
>> 
>> During the loop, I’m calling multiple functions that use a variety of all the goodies LC has: tsNet directly to get some data and PUT and POST URL were they work fine (For some reason, they don’t work on some URL’s, but tsNet does). Processing that data and saving it back to the DB into a different table. While doing this I’m putting some text into a logging field, moving a progress bar and updating a counter field to show what record it’s on . I’m also running a timer to show the elapsed time.
>> 
>> When done I save the log fld to a text file, then clear it. I also close the record set.
>> 
>> The memory used for LC always goes up, but never goes down unless I quit.
>> 
>> What am I missing? LC does it’s own GC and memory management, but in this case, I don’t see it.
>> 
>> Anyone experience this before? Any tips for  controlling it?
>> 
>> TIA,
>> 
>> Steve MacLean
> 
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